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2025-03-05 14:00
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feat(Algebra/BigOperators/Sym): add sum_range_count_of_mem_sym (
#22391
)
Estimated changes
Modified
Mathlib/Algebra/BigOperators/Sym.lean
added
theorem
Finset.sum_count_of_mem_sym
modified
theorem
Finset.sum_sym2_filter_not_isDiag